Water closet



Fb, EL, 39360 c. H. ZWERMANN- 2,6%559 WATER cLosET Original Filed July 30,` 1932 ,Y2 Sheets-Sheet l Fd@ l, 393@ C. H. ZWERMANN 2,039,559

WATER CLOSET Original Filed July 50, 1932 2 Sheets-Sheet 2 MEL ATTORNEY Patented Feb. 1l, 1936 UNITED STATES WATER. CLOSET Carl H. Zwermann,

Ill., by Helene H. Zwermann, signors to W. A. son, Ill.

Zwermann, Jr., executor, Robinson, Ill., as- Gase & Son Mfg. Co., Robin- .deceased, late of Robinson,

executrix, and Carl original appucation July 3o, 1932, serial No.

626,540. Divided and this application January 26, 1935, Serial N0. 3,538

5 Claims.

This is a division of his application for patent for Water closets, Serial No. 626,540, filed July 30, 1932, and relates to the inventions of his Patents No. 1,869,401, issued August 2, 1932, and No. 1,933,518, issued October 31, 1933.

'I'he object of this invention is to provide a water closet having a flush tank to store water to institute siphonic action in the bowl and a jet under strong pressure to completely iiush the bowl, and in which a. simple and eflicient means of securing the tank to the bowl to provide a unitary structure of neat and attractive appearance is provided.

Objects and advantages of construction Aand operation will appear from the description to follow. A preferred embodiment or his invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a sectional elevation of a Water closet embodying his invention.

Fig. 2 is a sectional View of such a water closet taken on line 2-2 of Fig. l.

Fig. 3 is an enlarged detail sectional elevation through the ball cock valve and auxiliary valve mechanism taken on the line 3-3 of Fig. 1.

Fig. 4 is a detail sectional view of the bowl of such a closet showing the passage for the introduction of water from the supply main taken on line 4-4 of Figs. 2 and 5.

Fig. 5 is a detail sectional plan view of a Vportion of the bowl taken on line 5 5 of Figs. 1, 2 and 4.

The parts will be identified by their numerals of reference which are the same vin all the views.

I is a water closet bowl provided with an annu-- lar supply passage 2 vat the top with downwardly directed delivery perforation 2| leading into the upper part of the bowl` 3 is the discharge ASiphon having the up-leg 3I and the -down-leg 32. 5 is an auxiliary passage for supplying water to jet 5| in the bottom of the bowl 4 under strong pressure from the water main. The jet 5I discharges across the bottom of the bowl and into the upleg 3| of the siphon 3.

6 is a water tank or small capacity. The capacity is preferably less than is required to completely flush the bowl but yis sufficient to institute siphonic action therein. 8 is the usual rubber water closet valve controlled by the usual lever connection 9. II) is the overow pipe of usual construction. II is the supply pipe. I2 is the ball cock valve and I3 is the float which controls the same. I4 is the supply pipe leading to the ball cock valve and I5 is the re-fill pipe leading from the valve chamber upwardly and around over into the overflow pipe I0. I6 is the auxiliary supply pipe extending to the port I'BI to the auxiliary jet passage 5. I1 is the auxiliary valve casmg.

Ball cock I2 is provided with a conical seat |21 against which closes the poppet valve |22. A cylindrical bushing |23 is provided within the valve casing and a. counter-balanced, cylindrical, spool-shaped plunger |24 reciprocates within this casing, being provided'with a hydraulic cup packing I 25, |25 at each end and being provi-ded with a central bore whereby the plunger will be counterbalanced by equal pressureo-f water at both ends. The throw of the plunger is adjustable by set screw |26 extending through stuiiing box |21. Float lever |3I is ulcrumed at |32 to ears |33 on the side of the casing of valve I2 and has a rounded inwardly projecting short arm I 34 engaging between the end flanges of the piunger |24. This provides a valve the operation of which is readily adjustable and is very rreein itsmovements which is required for a structure of this kind.

The outlet |28 of the ball cock valve I2 leads into a casing |1I of the auxiliary valve mechanism I1. 'I'his valve casing is provided with an intake chamber :|12 `and. an outlet chamber |13 delivering downwardly through pipe I4 whereby the tank -6 is filled. Valve casing I1 is also provided with discharge chamber |14 to supply the pipe I6 to the auxiliary jet under direct pressure from the main. Valve I8 is provided for controlling the ow of water through the auxiliary valve. In its lower position it closes Valve seat IBI vand prevents the direct flow of water from chamberI'IZ to the main passage |13. Valve I8 is provided with a vertical stem |82 and within the casing -I1I isa valve seat |83 controlling the supply to the chamber I`14. Valve seat .|83 is directly above valve seat IBI so that when the valve I8 is raised against the valve seat |83, the supply of water to passage |13 and auxiliary pipe I6 is eut off and water delivered directly from supply chamber I 13 to pipe I4 for lling the tank.

The action vof valve I8 is controlled automatieally by the diaphragm plunger and oat means. In 'a recess 115 below Valve I8 `is disposed a diaphragm I9 which is clamped at its periphery by bottom cover plate 20. To the center of this diaphragm `is secured the vertical plunger 2|. The plunger 2| is disposed axially under valve I8 and when it is raised elevates the valve to the dotted position indicated in Fig. 3, closing seat |83. This is accomplished when the diaphragm is acted upon automatically by hydraulic pressure. A cylindrical chamber 20| is formed centrally beneath the diaphragm I9 in the cover 20. A restricted passage 202, 283 through hollow screw 22 delivers into the upper part of chamber 20| directing a jet radially and centrally into the same. The lower part of the chamber is provided with outlet 284 connecting to a central bore 205 terminating in a valve seat 205 above. A dished shaped valve 23 cooperates with the valve seat 286. This valve is a float valve provided with a central stem 23| attached to a screw and suspending a float 233 at its lower end. Limiting stop collar 232 is provided on the valve stem 23 I. The float chamber 24 is Vented at the top at 242 and embraces said float 233 and is disposed below the valve chamber I1 and attached thereby to suitable head, as shown. l

25 is a hollow shelf with supporting side Walls 25|, 25| forming a recess 252 entirely concealing from view the attaching screw to be hereafter described. The tank 8 is of vitreous china material and is supported on said shelf, there being a ground joint 253 on the bottom of the tank tting a corresponding ground joint 254 on the top of the shelf of the bowl. 26 is a usual flush Valve construction having a screw threaded shank ISI projecting well below the bottom in the usual manner and projecting into the opening in the top wall of the shelf. 21 is a special nut for attaching the flush valve structure, threaded to engage the projecting shank 26| and thus support the flush valve structure. The nut is provided with a downwardly projecting cross bar 21| having a threaded boss 212 at the center. Attaching screw 28 projects upwardly through the lower wall of the shelf and engages the threaded boss 212. The screw 28 is centrally located and is embraced and concealed in the recess 252 at the back of the bowl. A metal washer 28| is provided which engages a rubber packing washer 282 to securely close the opening.

The passage 5 is arranged at the outside of the bowl and a wall or web 52 forming a recess 53 entirely conceals from view the connection between the pipe I6 and the passage 5. The pipe I6 extends downwardly through the opening |6| and is anchored by nuts 54. The end projects into opening 55 wherein is a packing 56 that shoulders against nut 51 to make a tight buttjoint. The nut 51 makes the shoulder adjustable to assure a tight t as the tank is tightened into place. The screw 28 when tightened holds this joint as it does the joint formed at the ush valve.

The parts of the closet having been described, the operation will be discussed in detail.

When the lever 9 is tripped, valve 8 is raised and the water in the tank drops by gravity through the shank 25| into the hollow shelf 25. The water flowing into the hollow shelf 25 flows into annular passage 2 and is discharged through opening 2| into the bowl to start the siphonic action by nlling the bowl. 'Ihe discharge through jet 5| into the up-leg 3| of the siphon then boosts the siphonic action and carries on the flushing of the bowl, as will be more fully set forth hereafter. The tank 6 is of such capacity that there is sui'- cient water to start the siphonic action which is taken up by the jet 5I to cause the flushing operation.

As the water flows from the tank, the oat I3 drops and valve |22 is raised from its seat I2I. Water under pressure at once rushes into the discharge opening |28 to chamber |12 above valve Y I8, up past valve .seat |83 to discharge chamber |14 into pipe 5, thence down through the passage 5, delivering a strong jet of water under direct pressure from the main across the bottom of the bowl and into the up-leg 3| of the siphon.

This action continues with increasing strength as valve |22 is raised, thus securing a very strong jet discharging action into the up-leg 3| of the siphon 3. As the `.vater in the tank descends, it eventually drops below the valve casing 24 and permits water to now out through aperture 24| permitting float 233 to drop. This carries down valve 23 by its connection to the valve stem 23|. As soon as valve 23 seats at 205 chamber 20| is substantially closed and water under pressure enters and acts upon the diaphragm I9 carrying plunger 2| upwardly against valve I8, lifting it against the seat |83 and cutting off the auxiliary water supply to the jet.

Valve I8 closes against seat |83 and is maintained there until the float 233 raises the oat valve 23 off its seat. When this is done water from chamber 28| is at once discharged and the pressure on diaphragm I9 is released. The plunger 2| drops and by this time valve |22 has been closed onto its seat |2| Pressure is released and valve I8 drops into its seat |8| and the water closet is against ready for operation.

In the meantime during these operations, suflcient pressure is in the chamber |1| to deliver sufficient water through re-ll pipe I5 to re-ll the bowl.

By using his improvement it is possible to make use of a much smaller flush tank than formerly, while obtaining the silent action of the siphon with the positive flushing action of the pressure from the water main, which action is obtained in a substantially noiseless manner.

By the construction of the shelf on the bowl and the flush tank fastened by the single screw, he has produced a structure that is very simple and in which the parts are effectively sealed and made water tight. The pipe I6 is held in water tight relation to the passage 5 by the action of the single screw and a much simpler structure is possible, the present structure being easily detached and at the same time embodying the advantages heretofore set forth.

He has described his structure in the precise detail in which he wishes to claim it speciiically. He also wishes to claim the invention broadly as pointed out in the appended claims.

Having thus described the invention, what he claims as new and desires to secure by Letters Patent is:

1. In a water closet having a bowl with a rearwardly projecting hollow shelf adapted t0 Supply said bowl, a jet within the bowl, a passage to said jet within the bowl, a gravity tank adapted to supply said hollow shelf and be supported thereon and having therein a ball cock and an auxiliary valve controlled by pressure from the ball cock and having therein a direct connection through the tank and from the main water supply adapted to be connected to said passage in said bowl and controlled by said auxiliary valve, the same constituting automatic means for controlling said Water supply, the combination of side walls supporting said hollow shelf and forming a concealed recess at the back of the bowl, a side wall forming a second concealed recess into which said passage opens and adapted to receive the end of said direct connection through said tank, means for forming a water tight joint between said tank and said hollow shelf, a buttjoint in said second recess between said connection through the tank and said passage, and means to pull said tank toward said shelf to seal said means for forming a water-tight joint between the tank and shelf to secure the tank on the shelf and to seal said butt-joint comprising a screw concealed in said first-mentioned recess.

2. In a water closet having a bowl with a rearwardly projecting hollow shelf adapted to supply the bowl, a jet within the bowl, a passage within the bowl leading to said jet, a gravity tank adapted to supply said hollow shelf and be supported thereon, a direct connection through said tank and from the main water supply adapted to be connected to said passage, the combination of side walls supporting said hollow shelf and forming a concealed recess at the back of the bowl, a side wall forming a second concealed recess to which said passage communicates and adapted to receive said direct connection through the tank, means for forming a tight joint between said hollow shelf and tank, and a butt-joint in said second recess and between said connection and said passage, and means for securing said tank on said shelf and for sealing said means for making a tight joint and for sealing said butt-joint comprising a screw concealed in said first-mentioned recess to pull said tank toward 3. In a water closet having a bowl with a rearwardly projecting hollow shelf adapted to supply the bowl, a jet within the bowl and a passage leading to said jet and a gravity tank adapted to supply said hollow shelf and be supported thereon with a direct connection from the main water supply through said tank and adapted to be connected to said passage, the combination of side walls supporting said shelf and forming a concealed recess at the back of the bowl, means forming a seal between said gravity tank and said hollow shelf and a butt-joint between said connection and said passage, and means for securing said tank on said shelf and for sealing said butt-joint comprising a screw concealed in said recess to pull said tank toward said shelf.

4. In a water closet having a. bowl with a rearwardly projecting hollow shelf adapted to supply the bowl, a jet within the bowl, a passage from the jet to a portion of the bowl adjacent the shelf, a gravity tank adapted to supply said hollow shelf and be supported thereon having therein a ball cock, an auxiliary valve controlled by pressure from the ball cock both in said tank, and a direct connection through said tank from the main water supply and adapted to be connected to said passage and be controlled by said auxiliary valve, the combination of means forming a water-tight joint between said tank and said shelf, and a butt-joint between said direct connection and said passage and means to pull said tank toward said shelf to seal said means for forming a water-tight joint between said tank and said shelf and to seal said butt-joint comprising a screw, and a pair of walls extending rearwardly from said bowl forming a recess concealing said screw and said butt-joint.

5. In a water closet having a bowl having a rearwardly projecting hollow shelf adapted to supply said bowl, a jet within the bowl, a passage from said jet to a portion of the bowl ad'- jacent said shelf, a gravity tank adapted to supply said hollow shelf and be supported thereon and a direct connection through said tank and from the main water supply and adapted to be connected to said passage, the combination of means forming a water-tight joint between said shelf and said gravity tank, a butt-joint between said direct connection and said passage, and means to pull said tank toward said shelf to seal said means forming a water-tight joint between said shelf and said tank and to seal said buttjoint comprising a screw and a pair of walls extending rearwardly from said bowl forming a recess concealing said screw and said butt joint.

HELENE ZWERMANN, CARL H. ZWERMANN, J R., Eecutria: and Eecutor of Carl H. Zwermafm.

Deceased. 

